http://www.maryjos.com/store/search.aspx
Someone posted a link to this shop the other day and I noticed that they carry the "Very Hungry Caterpillar" fabric that that adorable dress was made of. Looks like it's still available.
Also, to the poster, Tricia, looking to go fabric shopping in the states, what I do is this. I go to the JoAnn's website and type in the postal code for my hotel and see how close the nearest JoAnn's is -preferably a "superstore" and use mapquest to get my directions from the hotel to the shop and back.
Also, don't negate Ontario entirely! I'm visiting friends in the Kitchener/Waterloo area next week and I'm looking forward to hitting Lens Mills while I'm there. So, if you get down south at all that far, check it out.